Among the not-so-obvious backs who could jump into fantasy football owners' lineups this week in the right situation is preseason sleeper (and current bust) Lamar Miller. It's not even about his favorable matchup against the Bills, who rank 28th against the run; it's more about the Dolphins finally realizing that Miller, who's averaging just 10 carries a game, needs more work coming out of the bye. This could be the game he finally breaks out.

At least one of our experts also likes the Panthers' DeAngelo Williams to exploit his matchup against the Rams, who are allowing the second-most fantasy points per game to RBs. True, he'll still have to share the glory with Mike Tolbert and Cam Newton, but there should be enough RB fantasy points to go around in Carolina this weekend.

The Chargers' Ryan Mathews has always been a frustrating back to own, but one of our experts thinks his owners should trust him this week against Jacksonville. The Jaguars are allowing the fifth-most fantasy points per game to RBs, thanks to six rushing scores in six games, and haven't been as vulnerable to pass-catching backs like Danny Woodhead. That, and potential clock-killing carries, could lead to a nice day for Mathews. If you're not starting him this week, why even own him?

Our experts also like a pair of rookies to have big games in Week 7. The Bengals' Giovani Bernard faces Detroit, which has allowed eight total scores to running backs, including three TD catches. That plays perfectly to Bernard's strength. Meanwhile, Joseph Randle is expected to draw the start in DeMarco Murray's absence, making him an immediate scoring threat for Dallas' high-powered offense in what could be a slugfest with the Eagles.

These are the guys you should start, but what about those you should sit? Fantasy Source members can also see our experts' RB stumblers, which include two fantasy first-rounders and a stud from last week (picked twice). Members also get stud/sleeper/stumbler picks at every position, as well as rankings, stat projections and fantasy matchups for every game, so join today for just $4.99 per month and dominate your fantasy football leagues.